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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

27

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
drexel.edu/carbon/js/libraries-generated.js600.0 s443.8 KiB
drexel.edu/carbon/js/index-generated.js600.0 s107.5 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
drexel.edu/carbon/css/drexel-structure-generated.css600.0 s70.9 KiB
www.clickcease.com/monitor/stat.js0.0 ms43.6 KiB
/signals/config/2087170944850202?v=2.9.303&r=stable&domai...1200.0 s46.9 KiB
platform.twitter.com/widgets.js1800.0 s27.3 KiB
www.redditstatic.com/ads/pixel.js?pixel_id=a2_ii9lx8agsc1p60.0 s19.0 KiB
drexel.edu/carbon/css/drexel-base-theme-generated.css600.0 s19.5 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
/signals/config/821157078785204?v=2.9.303&r=stable&domain...1200.0 s16.9 KiB
/signals/config/176150353765937?v=2.9.303&r=stable&domain...1200.0 s16.7 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
drexel.edu/carbon/css/drexel-base-generated.css600.0 s11.3 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js86400.0 s25.0 KiB
c.amazon-adsystem.com/aat/amzn.js0.0 ms8.9 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
use.typekit.net/lmn1iei.js600.0 s7.3 KiB
drexel.edu/layouts/system/VisitorIdentification.js600.0 s5.3 KiB
drexel.edu/carbon/css/drexel-core-theme-generated.css600.0 s4.6 KiB
js.ipredictive.com/adelphic_universal_pixel.js0.0 ms3.5 KiB
tracker.pixeltracker.co/pixel.js14400.0 s5.1 KiB
cdn.veritonic.com/static/vpr.min.js0.0 ms2.7 KiB
cdn.mgln.ai/pixel.min.js14400.0 s3.0 KiB
js.adsrvr.org/universal_pixel.js0.0 ms935 B
/collect?v=2&fmt=js&pid=343060&time=1776814158267&url=htt...0.0 ms694 B
/rp.gif?ts=1776814158287&id=a2_ii9lx8agsc1p&event=PageVis...0.0 ms666 B
/config/edu/f8c6b381-ffb7-4387-a6fd-18aaa798bfca.js?v=3.5...0.0 ms450 B
js.adsrvr.org/universal_pixel.js0.0 ms442 B
/p.gif?s=1&k=lmn1iei&ht=tk&h=drexel.edu&f=10879.10880.108...604800.0 s205 B
/tr/?id=2087170944850202&ev=PageView&dl=https%3A%2F%2Fdre...0.0 ms16 B
/tr/?id=176150353765937&ev=PageView&dl=https%3A%2F%2Fdrex...0.0 ms16 B
/tr/?id=821157078785204&ev=PageView&dl=https%3A%2F%2Fdrex...0.0 ms16 B

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
use.typekit.net/af/72575c/00000000000000003b9af1e5/27/l?subset_id=2&fvd=i7&v=335 ms
use.typekit.net/af/053fc9/00000000000000003b9af1e4/27/l?subset_id=2&fvd=n7&v=330 ms
use.typekit.net/af/8e6175/000000000000000000017384/27/l?subset_id=2&fvd=n4&v=325 ms
use.typekit.net/af/774556/000000000000000000017385/27/l?subset_id=2&fvd=n3&v=325 ms
use.typekit.net/af/3eba9e/000000000000000000017386/27/l?subset_id=2&fvd=n6&v=325 ms
use.typekit.net/af/e1e96e/000000000000000000017387/27/l?subset_id=2&fvd=n5&v=325 ms
use.typekit.net/af/ae4f6c/000000000000000000010096/27/l?subset_id=2&fvd=n3&v=320 ms
use.typekit.net/af/6f8764/000000000000000000012039/27/l?subset_id=2&fvd=n4&v=320 ms
use.typekit.net/af/64e0cf/00000000000000000001203d/27/l?subset_id=2&fvd=n7&v=320 ms
use.typekit.net/af/e6a9c1/00000000000000000001203e/27/l?subset_id=2&fvd=i7&v=320 ms
use.typekit.net/af/849347/000000000000000000010093/27/l?subset_id=2&fvd=i3&v=315 ms
use.typekit.net/af/cf3e4e/000000000000000000010095/27/l?subset_id=2&fvd=i4&v=315 ms
use.typekit.net/af/1b297b/000000000000000000012193/27/l?subset_id=2&fvd=i6&v=315 ms
use.typekit.net/af/1eb35a/000000000000000000010090/27/l?subset_id=2&fvd=i5&v=310 ms
use.typekit.net/af/78cd4a/000000000000000000017383/27/l?subset_id=2&fvd=n7&v=310 ms
use.typekit.net/af/9b05f3/000000000000000000013365/27/l?subset_id=2&fvd=n4&v=35.0 ms
use.typekit.net/af/c4c302/000000000000000000012192/27/l?subset_id=2&fvd=n6&v=35.0 ms
use.typekit.net/af/082b7c/00000000000000000001203a/27/l?subset_id=2&fvd=i4&v=35.0 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
A crowd of students at Drexel's 2025 Commencement. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...124.9 KiB86.5 KiB
Students on Drexel University's campus div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr...126.6 KiB75.5 KiB
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/vi...102.6 KiB51.4 KiB
President Antonio Merlo at a podium in his robes div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...64.0 KiB33.4 KiB
A gold medallion and tassel on a blue velvet fabric. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...58.0 KiB26.6 KiB
Drexel Map Collage div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/home/promo-ar...73.9 KiB22.7 KiB
Eunice Santos div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...45.0 KiB20.6 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:430.2979990234375 label:Time to first byte subpart:timeToFirstByte] map[duration:337.2640009765625 label:Resource load delay subpart:resourceLoadDelay] map[duration:0 label:Resource load duration subpart:resourceLoadDuration] map[duration:2176.759 label:Element render delay subpart:elementRenderDelay]]
lhId: page-7-VIDEO
nodeLabel: div.animated-hero > div.animated-hero__video-wrapper > div.animated-hero__video > video#/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-update.mp4
path: 1,HTML,1,BODY,5,MAIN,0,DIV,0,DIV,1,DIV,0,DIV,0,VIDEO
selector: div.animated-hero > div.animated-hero__video-wrapper > div.animated-hero__video > video#/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-update.mp4
snippet: <video id="/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-…" aria-describedby="hero-video-description" preload="auto" muted="muted" autoplay="autoplay" loop="loop" playsinline="">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-7-VIDEO
nodeLabel: div.animated-hero > div.animated-hero__video-wrapper > div.animated-hero__video > video#/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-update.mp4
path: 1,HTML,1,BODY,5,MAIN,0,DIV,0,DIV,1,DIV,0,DIV,0,VIDEO
selector: div.animated-hero > div.animated-hero__video-wrapper > div.animated-hero__video > video#/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-update.mp4
snippet: <video id="/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/webvignette-62624-…" aria-describedby="hero-video-description" preload="auto" muted="muted" autoplay="autoplay" loop="loop" playsinline="">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
drexel.edu/http/1.1
drexel.edu/layouts/system/VisitorIdentification.jshttp/1.1
drexel.edu/carbon/css/drexel-base-generated.csshttp/1.1
drexel.edu/carbon/css/drexel-structure-generated.csshttp/1.1
drexel.edu/carbon/css/drexel-base-theme-generated.csshttp/1.1
drexel.edu/carbon/css/drexel-core-theme-generated.csshttp/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/home/news/aj-...http/1.1
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...http/1.1
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...http/1.1
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...http/1.1
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/home/news/dre...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/un...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/vi...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/home/promo-ar...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...http/1.1
drexel.edu/carbon/js/libraries-generated.jshttp/1.1
drexel.edu/carbon/js/index-generated.jshttp/1.1
/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/w...http/1.1
/~/media/Drexel/Core-Site-Group/Core/Images/research-inno...http/1.1
drexel.edu/~/media/Drexel/Project/Standard/FavIcon.icohttp/1.1

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
drexel.edu/carbon/css/drexel-structure-generated.css70.9 KiB1.8 s
drexel.edu/layouts/system/VisitorIdentification.js5.3 KiB716 ms
drexel.edu/carbon/css/drexel-core-theme-generated.css4.6 KiB716 ms
drexel.edu/carbon/css/drexel-base-theme-generated.css19.5 KiB1.1 s
drexel.edu/carbon/css/drexel-base-generated.css11.3 KiB504 ms

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 720 ms 76.9 KiB
URLTransfer SizeEst Savings
drexel.edu/carbon/css/drexel-structure-generated.css66.4 KiB62.3 KiB
drexel.edu/carbon/css/drexel-base-theme-generated.css14.9 KiB14.6 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 6.3 s 937.5 KiB
URLTransfer SizeEst Savings
drexel.edu/carbon/js/libraries-generated.js439.2 KiB237.2 KiB
www.googletagmanager.com/gtag/js?id=G-H9NXSPBKEB&cx=c&gtm=4e64h1150.7 KiB69.4 KiB
www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c&gtm=4e64h1134.1 KiB67.1 KiB
www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c&gtm=4e64h1172.3 KiB66.2 KiB
www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c&gtm=4e64h1151.5 KiB64.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP178.3 KiB64.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-WN3NC5R125.1 KiB64.2 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js120.9 KiB63.0 KiB
drexel.edu/carbon/js/index-generated.js103.0 KiB60.5 KiB
www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c&gtm=4e64h1129.4 KiB56.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-TJCKC2200.1 KiB53.1 KiB
www.clickcease.com/monitor/stat.js42.9 KiB38.4 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.4 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable1.1 s132 ms0.0 ms
drexel.edu/980 ms97 ms3.4 ms
www.googletagmanager.com/gtm.js?id=GTM-TJCKC2780 ms677 ms75 ms
drexel.edu/carbon/js/index-generated.js606 ms522 ms66 ms
www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP542 ms463 ms61 ms
www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c&gtm=4e64h1317 ms275 ms40 ms
www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c&gtm=4e64h1257 ms213 ms41 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js242 ms184 ms54 ms
scripts.clarity.ms/0.8.60-beta/clarity.js219 ms194 ms8.7 ms
www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c&gtm=4e64h1219 ms177 ms40 ms
www.googletagmanager.com/gtag/js?id=G-H9NXSPBKEB&cx=c&gtm=4e64h1217 ms161 ms54 ms
drexel.edu/carbon/js/libraries-generated.js211 ms20 ms181 ms
www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c&gtm=4e64h1211 ms171 ms39 ms
sc-static.net/scevent.min.js177 ms154 ms14 ms
/signals/config/2087170944850202?v=2.9.303&r=stable&domai...143 ms126 ms16 ms
www.googletagmanager.com/gtm.js?id=GTM-WN3NC5R133 ms104 ms26 ms
connect.facebook.net/en_US/fbevents.js122 ms93 ms28 ms
platform.twitter.com/widgets.js112 ms92 ms8.3 ms
/config/edu/f8c6b381-ffb7-4387-a6fd-18aaa798bfca.js?v=3.5...109 ms108 ms0.3 ms
app.heyhalda.com/widgets/smart-forms/cm1jf94nw137hc7r5f3hp30by.js?r=qvamhp106 ms74 ms18 ms
snap.licdn.com/li.lms-analytics/insight.min.js77 ms65 ms6.9 ms
www.redditstatic.com/ads/pixel.js?pixel_id=a2_ii9lx8agsc1p69 ms60 ms5.4 ms
js.adsrvr.org/up_loader.1.1.0.js66 ms42 ms13 ms
www.google-analytics.com/analytics.js61 ms47 ms8.3 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js56 ms37 ms18 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation4.6 s
Other1.4 s
Script Parsing & Compilation871 ms
Style & Layout337 ms
Rendering194 ms
Garbage Collection135 ms
Parse HTML & CSS86 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 4.6 KiB
URLTransfer SizeEst Savings
drexel.edu/carbon/css/drexel-core-theme-generated.css4.6 KiB4.6 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/~/media/Drexel/Core-Site-Group/Core/Documents/homepage/w...1.4 MiB
drexel.edu/carbon/js/libraries-generated.js443.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-TJCKC2200.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP178.4 KiB
www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c&gtm=4e64h1172.3 KiB
www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c&gtm=4e64h1151.5 KiB
www.googletagmanager.com/gtag/js?id=G-H9NXSPBKEB&cx=c&gtm=4e64h1150.8 KiB
/~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr...147.5 KiB
www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c&gtm=4e64h1134.2 KiB
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr...131.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/vi...
Students on Drexel University&#39;s campus div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr...
Drexel Map Collage div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/home/promo-ar...
Experience Drexel: Solutions at the Nanoscale) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...
Experience What Education Can Be. Drexel.) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...
President Antonio Merlo at a podium in his robes div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...
Philadelphia Skyline div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe...
Drexel University&#39;s Activities Fair div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe...
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr...
Eunice Santos div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...
A crowd of students at Drexel's 2025 Commencement. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...
A gold medallion and tassel on a blue velvet fabric. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img
/~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag...
A woman clapping div.color-stripe-promo > div.color-stripe-promo__image-wrapper > picture.color-stripe-promo__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...
Experience Drexel: Preparing for Disaster) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img
/~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna...
Exterior of Bossone Research Enterprise Center with Philadelphia Skyline section.in-the-news > div.in-the-news__body > div.in-the-news__image > img
/~/media/Drexel/Core-Site-Group/Core/Images/home/news/dre...

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits
●Document request latency
●Optimize DOM size
●Forced reflow
●Optimize viewport for mobile
●Minify JavaScript
●User Timing marks and measures 11 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 3 animated elements found
●Network Requests
●Network Round Trip Times 170 ms
●Server Backend Latencies 310 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 220 ms
○INP breakdown
○Avoid large layout shifts
89

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Research & Innovation div.layout-columns > div.color-block-promo > div.color-block-promo__image-wrapper > div.color-block-promo__image

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
RESEARCH & INNOVATION div.layout-columns > div.color-block-promo > div.color-block-promo__body > div.color-block-promo__label

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.layout-columns__col > div.rich-text > p > a div.layout-columns__col > div.rich-text > p > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
73

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
AttributionReporting
snap.licdn.com/li.lms-analytics/insight.min.js
SharedStorage
c.amazon-adsystem.com/aat/amzn.js line 1, col 7935

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
drexel.edu/
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed.
js.adsrvr.org/
Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
js.adsrvr.org/
Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
js.adsrvr.org/
Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
js.adsrvr.org/
Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
sc-static.net/
Framing 'https://tr.snapchat.com/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
sc-static.net/
Framing 'https://tr.snapchat.com/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
drexel.edu/
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c&gtm=4e64h1 line 125, col 441
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
platform.twitter.com/widgets.js line 7, col 36291
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
js.ipredictive.com/adelphic_universal_pixel.js
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
platform.twitter.com/widgets.js line 7, col 25921
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
platform.twitter.com/widgets.js line 7, col 25921
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
js.adsrvr.org/up_loader.1.1.0.js
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
js.adsrvr.org/up_loader.1.1.0.js
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
sc-static.net/scevent.min.js line 1, col 23064
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy.
drexel.edu/carbon/js/libraries-generated.js
You are currently using minified code outside of NODE_ENV === "production". This means that you are running a slower development build of Redux. You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify or setting mode to production in webpack (https://webpack.js.org/concepts/mode/) to ensure you have the correct code for your production build.

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
drexel.edu/carbon/js/libraries-generated.jsdrexel.edu/carbon/js/libraries-generated.js.map
drexel.edu/carbon/js/index-generated.jsdrexel.edu/carbon/js/index-generated.js.map
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
drexel.edu/about/outcomes-valueLEARN MORE

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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